15. What are age pyramids?

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Age pyramids are graphical
in form of superposed
each representing the
number individuals included in age
into which a population
divided. Generally the lower ranges
are represented more the bottom of
the , always below higher
ranges, the variable dimension that
the number of individuals
the width (there are pyramids
however in which variable
dimension is the ).